这是一个简单而基本的问题,我想。但我没有设法找到一个清晰而简单的答案。 这里是我的问题:Python打开并逐个解析URL的a.txt
我有一个.txt文件与每行(大约300)的网址。我从一个python脚本中获得了这些url。 我想通过一个这些URL打开一个执行这个脚本为每一个得到一些信息,我感兴趣的是:
import urllib2
from bs4 import BeautifulSoup
page = urllib2.urlopen("http://www.aerodromes.fr/aeroport-de-saint-martin-grand-case-ttfg-a413.html")
soup = BeautifulSoup(page, "html.parser")
info_tag = soup.find_all('b')
info_nom =info_tag[2].string
info_pos =info_tag[4].next_sibling
info_alt =info_tag[5].next_sibling
info_pis =info_tag[6].next_sibling
info_vil =info_tag[7].next_sibling
print(info_nom +","+ info_pos+","+ info_alt +","+ info_pis +","+info_vil)
aero-url.txt
:
http://www.aerodromes.fr/aeroport-de-la-reunion-roland-garros-fmee-a416.html,
http://www.aerodromes.fr/aeroport-de-saint-pierre---pierrefonds-fmep-a417.html,
http://www.aerodromes.fr/base-aerienne-de-moussoulens-lf34-a433.html,
http://www.aerodromes.fr/aerodrome-d-yvetot-lf7622-a469.html,
http://www.aerodromes.fr/aerodrome-de-dieppe---saint-aubin-lfab-a1.html,
http://www.aerodromes.fr/aeroport-de-calais---dunkerque-lfac-a2.html,
http://www.aerodromes.fr/aerodrome-de-compiegne---margny-lfad-a3.html,
http://www.aerodromes.fr/aerodrome-d-eu---mers---le-treport-lfae-a4.html,
http://www.aerodromes.fr/aerodrome-de-laon---chambry-lfaf-a5.html,
http://www.aerodromes.fr/aeroport-de-peronne---saint-quentin-lfag-a6.html,
http://www.aerodromes.fr/aeroport-de-nangis-les-loges-lfai-a7.html,
...
我想我必须使用循环与这样的事情:
import urllib2
from bs4 import BeautifulSoup
# Open the file for reading
infile = open("aero-url.txt", 'r')
# Read every single line of the file into an array of lines
lines = infile.readline().rstrip('\n\r')
for line in infile
page = urllib2.urlopen(lines)
soup = BeautifulSoup(page, "html.parser")
#find the places of each info
info_tag = soup.find_all('b')
info_nom =info_tag[2].string
info_pos =info_tag[4].next_sibling
info_alt =info_tag[5].next_sibling
info_pis =info_tag[6].next_sibling
info_vil =info_tag[7].next_sibling
#Print them on the terminal.
print(info_nom +","+ info_pos+","+ info_alt +","+ info_pis +","+info_vil)
我会写这些结果后的txt文件。但我的问题在于如何将我的分析脚本应用到我的URL文本文件。
'lines'不是行列表。正如你无论如何似乎打算循环在'infile'中的每一行,我相信''lines'不是必需的。此外,您还缺少一些缩进等等。 –